AIRSKY Side Sleeper Pillow 45D: Great Inexpensive Heart Pillows
Airsky Side Sleeper Pillow 45D: A Closer Look at Memory Foam Support for Side Sleepers
The Side Sleeper’s Pillow Problem
If you sleep on your side, you already know the struggle. There’s a gap between your ear and your shoulder, and a pillow that’s too flat or too puffy leaves your neck bent all night. By morning you might wake up stiff, sore, or with a dull ache across the shoulders.
That’s why pillows made for side sleepers have become so popular. The Airsky Side Sleeper Pillow 45D is one of them, built around the idea that your pillow should fit the way you actually sleep.

What Does “45D” Mean?
The “D” usually refers to foam density. In general, a higher number means a denser, firmer foam that holds its shape longer. A 45D memory foam generally lands in the medium-to-firm range: it gives under your head but still pushes back enough to keep your neck from sinking.
How It’s Meant to Work
A side sleeper pillow is usually taller and more contoured than a standard bed pillow. The goal is simple: fill the space between your head and the mattress so your head stays level with your spine. When your neck sits in a neutral position, there’s less strain on the muscles that hold it up.
A shape that cradles the head can also keep it from drifting off the pillow when you roll around. Many side sleepers like that steady feeling.
Who It May Suit
- Dedicated side sleepers who need extra height
- People with broad shoulders, who often need a taller pillow
- Anyone who dislikes flat, sinking pillows and prefers a supportive feel
- Combination sleepers who spend part of the night on their back, if the loft isn’t too high
Pros and Cons
Pros
- Shaped to fill the neck-to-shoulder gap for side sleeping
- Dense foam holds its form better than cheap fiberfill
- A medium-to-firm feel suits people who want support over softness
- Can reduce the need to stack or fold pillows
- Foam resists dust better than loose stuffing, which some people prefer
- Easy to place and use right out of the box
Cons
- Memory foam can feel warm, especially in hot climates
- A new foam pillow may have a short “off-gassing” smell
- Firmer foam may feel too stiff for people who like soft pillows
- Fixed height can’t be adjusted, so it may not fit every body type
- Takes a few nights to adjust to a new sleeping position
- Not suited to stomach sleepers, who usually need a flat pillow
Getting the Most Out of It
Give it at least a week before judging it. Your neck may need time to adjust. Air the pillow out for a day if it has a smell. Use a breathable pillowcase to help with warmth. And if you wake up with persistent pain or numbness, check with a healthcare professional, since a pillow can’t fix every cause of neck discomfort.
Buying Checklist for US Shoppers
- Loft height. Match it to your shoulder width.
- Return policy. Sleep preference is personal, so a trial or return window matters.
- Cover. A removable, washable cover is easier to keep fresh.
- Delivery time to your state. Check estimates and tracking.
- Seller reputation. Look at real reviews and contact options.
- Warranty. Foam quality can vary, so coverage is worth having.
Final Thoughts
The Airsky Side Sleeper Pillow 45D is built for one job: helping your head and neck stay in line while you lie on your side. If you favor firm, supportive bedding and usually sleep on your side, it deserves a closer look. Before you order, check the pillow’s exact dimensions and the return terms, and think about how they fit the way you sleep.
FAQs
Q1: How do I know if the Airsky 45D pillow is the right height for me?
A good rule of thumb is to compare the pillow’s height to the distance between your ear and the outer edge of your shoulder. When you lie on your side, your nose should line up with the middle of your chest, not tilt up or down. If you have broader shoulders, you’ll usually want a taller pillow, and if you’re smaller-framed, a lower one tends to feel better. Check the exact height on the product page, and keep the return policy in mind in case it doesn’t feel right.
Q2: Will a 45D memory foam pillow feel too hot at night?
It can, since memory foam tends to hold onto body heat more than some other fillings. Most people find a breathable cotton pillowcase helps, and so does keeping your bedroom a little cooler. If you’re a naturally warm sleeper, look at the product details for any cooling or ventilation features before you buy. [Add the pillow’s actual cooling details here.]
Q3: How long does it take to get used to a new side sleeper pillow?
Give it about a week or two. If your old pillow was too flat or too soft, a firmer, taller one can feel strange at first, even if it’s better for you. Your neck and shoulders need a few nights to settle into the new position. If you still feel pain, numbness, or discomfort after a couple of weeks, it’s worth returning the pillow and talking to a healthcare professional.





















Barbara Sherrill –
Mrs.
I love this pillow! It met all my expectations. It has just enough cervical neck support and yet is perfectly soft.
Rebecca –
Low pillow
This pillow is nice and it’s quite comfortable.It’s just super low, so it feels weird when you’re laying on it.It’s almost like you’re laying on nothing.I prefer my pillows with a little bit more.Height, but I will definitely be taking this with me.When I travel
RobRob –
As side-sleeping, CPAP-using guy I’m sold on this pillow.
It was time to get new pillows for the bed and this one caught my attention because a) I resolved to get a foam pillow after several friends over the years had positive things to say about them; b) the reviews were mostly positive from fellow side-sleepers.The pillow is shipped tightly rolled up in the box so it has to have an hour or so to regain its proper shape. I used that time to wash the pillow cover that comes with it. Unlike some others, I didn’t detect an a plastic or rubber odor from the pillow out of the box.The pillow cover is just that, a cover, not a pillow case as it’s described in the copy. The cover is designed to stay in place and that it does. There was a slight learning curve for me for something as basic as removing it and then putting it back on after it was washed and dried (which may say something about me lol). The pillow cover has an opening on the top side (not on an end) that corresponds with the pillow core or head cradle (the center of the pillow where most people will lay their head). It’s not difficult or a chore but you have to pay attention to what you’re doing or you’re gonna have to redo it.With the pillow cover on I put the pillow in a standard queen pillow case and looked forward to giving a go that night.Like with every other new pillow I have laid my head on, I have to experiment with positioning until I find the “just right” Goldilocks place for my head and neck. It didn’t take long until I was satisfied with the position.I use CPAP. Several years ago I finally found a mask and headgear that is comfortable for me but a standard pillow isn’t forgiving with it on. It’s the first thing I noticed when I laid my head on this pillow: the mask and pillow became one. If there’s such a thing as comfort while using CPAP this is it.I haven’t experienced any special cooling effect with this pillow. I attribute it to using the pillow cover and pillow case leaving little chance of air circulation and moisture wicking. OTH, I haven’t noticed increased warmth or discomfort so maybe it’s doing what is claimed and my theory is disproven.Bottom line: as side-sleeping, CPAP-using guy I’m sold on this pillow.
JoyinFL –
Supportive, cooling comfort — I finally wake up pain-free
I’ve been using this pillow for a few nights now, and it has already earned a permanent spot on my bed. I’ve tried just about every cervical pillow on the market over the years after a whiplash injury decades ago, and many ended up in storage. This one will not.The design is simple but effective: the dip in the center cradles my head when I’m on my back, and it gives proper support when I turn to my left or right. I wake up without stiffness or neck pain, which is something I can’t say for most pillows I’ve tried. The memory foam feels high quality, dense enough to hold its shape but soft enough to sink into gently. Even after several nights of use, it bounces back well and doesn’t flatten out.Cooling is another huge plus. Living in South Florida, nights can be uncomfortably warm, but this pillow really does stay cooler than others I own. The smooth, breathable cover is removable for washing, and as an unexpected benefit, it helps keep my long hair from tangling overnight. It also fits into a standard pillowcase if you prefer.I have a small frame at 5’4″, and this pillow works well for me, giving just enough height to keep my head aligned without pushing it forward or causing strain. Someone with very broad shoulders may find it a bit too low, since the pillow doesn’t have raised sides, it’s more of a flat supportive design rather than a heavily contoured one.Overall, this is the softest pillow I own, yet it still manages to keep my neck aligned and supported. Compared to other pillows I’ve tried, it strikes the best balance of comfort, support, and cooling. I’d recommend it to anyone, whether you struggle with neck pain or not, because it simply makes sleep more comfortable. For me, it’s been a true game-changer.
3 people found this helpful
Spunk –
Thin for side sleeping, but still a great pillow
Super soft and dreamy. I personally would prefer more thickness for the shoulder when sleeping on my side. I’ve added a flat travel pillow underneath to raise the overall height so I don’t crumple my shoulder and create unwanted old person chest crease wrinkles. I feel it is beautifully suited to back sleeping rather than side sleeping for this reason.I’m not unhappy with this purchase. I’ll try to make myself back sleep more often which is preferred by most Drs.
Rikki CJ –
Supportive and great quality
Honestly I’m one of those people that’s spending $100 on a pillow seems absolutely ridiculous so I didn’t have high hopes for this pillow BUT I was wrong. It’s pretty fantastic! It arrived in a very small box as is Pretty common for memory foam items, this one puffed up immediately out of the package however. I did wait a full 24 hours before using, but there was no smell and no need to air it out. My initial thought was this is entirely too thin and not nearly firm enough, but after using for a week my shoulder pain from sleeping on my side is completely gone. Also my neck no longer feels like I was in a truck wreck in my dreams. I’m not a big fan of the tie-dye weird color scheme lol, but after you put a pillowcase on it it really doesn’t matter anyway. It’s a good size unlike other pillows and it doesn’t have a weird wedge shape like other pillows that I’ve tried. I’ve slept on my stomach my back and my side with this pillow and I’m Amazed at how well it supports my neck even though it is so thin. Overall I think it’s a darn good value and I surprised myself by saying that!Here’s my rating scale for products:1 Star: Do not buy. This item has serious flaws. I would never under any circumstances use again.2 Stars: Do not buy. Its usable at best, but you could easily find something better.3 Stars: Just ok. Buy if you can’t find an alternative. Some issues need to be addressed.4 Stars: Recommend purchase. This item met my expectations.5 Stars: I love this product and would highly recommend to friends & family.Additional Information: As a Vine reviewer, I know that people depend on these early revies as I to depend on reviews when shopping on Amazon. I fully intend to give honest insights. Because I pay taxes on the retail value of the products I receive (approximately 40%, which includes 15.3% for Social Security/Medicare taxes and 25% for Federal Income taxes), I will not only leave a review, but should my view change I will update the review as well.Here’s my rating scale for products:1 Star: Do not buy. This item has serious flaws. I would never under any circumstances use again.2 Stars: Do not buy. Its usable at best, but you could easily find something better.3 Stars: Just ok. Buy if you can’t find an alternative. Some issues need to be addressed.4 Stars: Recommend purchase. This item met my expectations.5 Stars: I love this product and would highly recommend to friends & family.Additional Information: As a Vine reviewer, I know that people depend on these early revies as I to depend on reviews when shopping on Amazon. I fully intend to give honest insights. Because I pay taxes on the retail value of the products I receive (approximately 40%, which includes 15.3% for Social Security/Medicare taxes and 25% for Federal Income taxes), I will not only leave a review, but should my view change I will update the review as well.
One person found this helpful
AnnieAnnie –
Soft & Comfy Pillow
I was super excited to try this pillow out. I don’t have a pillow shaped like this one, so my curiosity was peaked. I’m a side sleeper who’s always on the lookout for new pillows. This pillow arrived rolled up and compressed. It unrolled easily after I removed the plastic packaging and began to puff up/ fill out very quickly. I checked it after an hour and it was done. No weird odors or chemical smells. First off, this is a very soft and comfortable pillow with just the right amount of squishiness to it. Second, yes it’s very soft but it’s also dense which adds support. Dense but not heavy. This pillow easily and quickly regains it’s shape after using. Third, the pillow didn’t get hot. I slept comfortably and cool throughout the night. The soft, silky pillowcase is removable. If you’re not partial to pastels, I checked and a regular standard size pillowcase fits perfectly. As for the shape, I love it! The unique shape makes it comfortable when tucking my arm under it. Another feature that surprised me was it’s ability to stay put. Because the pillow is dense, it doesn’t move and shift/ slide around like a standard bed pillow. That was a added bonus for me. Overall I’m happily surprised with this pillow and have added it to my pillow collection. The pillow provides good support while staying cool and comfortable. The unique shape adds comfort and I appreciate that my standard size pillowcases fit. For the comfort, quality and price point, 5 stars! 🌟
2 people found this helpful
W –
Finally, a Pillow That’s Both Supportive and Cooling!
After a long search, I can confidently say this is my new go-to pillow. As a lifelong side sleeper, I’ve struggled to find a pillow that provides the right amount of support without being too thick or firm. This ‘low-profile’ pillow is the perfect solution. It perfectly fills the space between my shoulder and head, which keeps my neck and spine aligned throughout the night. For the first time in a long time, I’m waking up feeling refreshed and without any neck stiffness or pain.Beyond the perfect shape and support, the other features are equally impressive. The cooling effect is real and very noticeable; it’s a huge bonus in our warm, humid climate and I no longer have to constantly flip my pillow to find a cool spot. The memory foam is soft yet supportive, cradling my head comfortably. I was also very pleased that it was truly odorless right out of the packaging, which isn’t always the case with memory foam. This is a high-quality, thoughtfully designed pillow that has genuinely improved my sleep.
The Cat Next Door –
Not a fan
It’s too soft and too flat in the middle. I sent this back. Turned out this style is not for me. It’s good otherwise if it works for you.
Amazon Customer –
False description.
False description. Says the highest point of the pillow is 4.5”. This is not true at all, closer to half that height. More like 2.75”. I would probably love this pillow if it was an 1.5” thicker. It’s a good one for children, not adults.