The size: the Egg Sitter sits (pun intended) at 15.5 x 14 x 1.5”, which makes it slightly wider than most cushions. Just slightly, though. Rest assured that it will still fit most chairs. U”: U-shaped pillows are ergonomically designed to provide support while reducing pressure on the tailbone and promoting a healthy posture. Let’s talk now about one of the most important features of a donut pillow beside its materials: discretion.

The cover: breathable (to complement the whole design), removable, machine-washable, and includes a non-slip bottom. What do they bring to the table? Ventilation. It’ll keep your seat cool and regulate humidity. Say goodbye to heat and moisture.O”: O-shaped pillows, also known as “donut pillows”, are, circular and designed to keep weight off pressure points. About that- remember that memory foam responds to heat and pressure (cold temperatures: firmer; warm temperatures: softer). Room temperature is ideal for optimal performance. As per the exterior materials, the most interesting feature of the Everlasting Seat is its gel rubber bottom: You may infer from its name that the Cylen Memory Foam Bamboo Charcoal-Infused is made of quite the interesting blend of materials… However, high-density memory foam is the most used and sought after material in coccyx pillows and sacral pillows because of its comfort and resilience.

Remember when I said that this pillow is quite interesting? This is why: the materials. The ComfiLife Gel-Enhanced Coccyx Seat Cushion is made of 100% high-density memory foam with a gel layer on top of it. The ORT (Our Royal Thighness) is our biggest and best sleeping pillow ever. A good choice for thicc thigh lovers. We are willing to bet it will be one of the most comfortable bed pillows you've ever own. Especially for medium to large size heads! The shape: As you can see in the picture, this pillow is shaped in the form of a “U”. This shape helps reduce pressure on the tailbone while (comfortably) maintaining a healthy posture. But let’s start from the beginning: the Everlasting Seat Cushion is 17.5″ x 13.5″ x 3″, U-shaped, and made of 100% memory foam. Translation: it’ll be comfortable. The ComfiLife Premium Comfort Seat Cushion is 17.5” x 13.7” x 2.8”, U-shaped, and made of 100% memory foam. If I had to describe it in one sentence, I’d say it’s a great multi-purpose product. Let’s see why:

4. ComfiLife Gel Enhanced Seat Cushion

As you may know (and maybe it’s the issue that’s keeping you from actually buying an O-shaped pillow), donut cushions have a certain… stigma to them. Most materials used on the pillow tend to get warm because of body heat. That warmth, in turn, can become moisture, which can lead to a bunch of not-so-fun stuff like mold. Hence why a breathable, hygienic, cover is also a must. The size: At 18 x 14 x 3 inches, the Aylio is the biggest pillow on this list, which makes it great for bigger people. The materials: high quality 100% memory foam. You’ll get to sit on it for long periods of time and it’ll retain its shape. Also great? It may be the biggest, but it’s also one of the lighter cushions we have reviewed so far. It weighs the grand total of one (1) pound, so transport will be zero (0) hassle.