Technogel Deluxe pillows come in 3 heights - Thin (3 1/2-inches)， Medium (4 1/2-inches) and Thick (5 1/2-inches). Technogel makes the highest quality gel and memory foam pillows in the world. Made with medical grade gel and premium memory foam， bonded together naturally with no glues， our pillows are odorless and hypoallergenic. They are ergonomically designed for proper spinal alignment， and provide a perfect balance of comfort and support. Consumers have given the pillows high marks for relieving neck， shoulder and upper back pain， and even alleviating headaches that occur during sleep. All Technogel pillows are designed to provide long-lasting cooling during sleep. The gel pulls heat away from your head， the gel towers provide air flow， and the holes pump heat away from the pillow as you move on it. There are two protective covers - a zippered， washable outer cover， and a 100% cotton inner cover that is dust-mite resistant and Oeko-Tex Certified.

• HEFTY SUPPORT FOR SIDE AND BACK SLEEPERS: A 5.5" thick cool gel memory foam pillow that provides comfort and spinal support for those with medium-to-large frames who sleep primarily on their sides， or for larger built back sleepers. Available in Queen (26"W x 16"D x 5.5"H) and King (32.5"W x 16"D x 5.5"H) size.

• ENHANCED BREATHABILITY AND COOLING EFFECT: A patent pending design features an array of top-to-bottom air tunnels that enhance Technogel's naturally high thermal conductivity so you stay cool， comfortable and sound asleep.

• SOFT， REMOVABLE COVER INCLUDED: Leave the zipped "winter" cover on for added coziness， or take it off to maximize the cooling effect of Technogel. Either way， please remember to always use a pillowcase.

• ERGONOMIC PRESSURE RELIEF: Adapting like water but with the support of a solid， Technogel reacts uniquely to your body to ease pressure while allowing natural movement. So you can lie down and let your stress drift away.

• A HEALTHY CHOICE: Technogel is the only polyurethane gel made without plasticizer oils--it's non-toxic， virtually odorless， and resists hardening or softening due to temperature or age. It's a biocompatible and resilient patented soft-solid gel.