A knee pillow is a pillow that is used to help maintain proper alignment when sleeping. For side sleepers, this pillow would be placed between the knees to align hips.
Having your hips aligned is very important when sleeping, think about it, you are sleeping for 6 to 8 hours every night and if you are not in alignment you could end up with back pain, joint pain or even worse.
Consider that when you are sleeping on your side, your upper leg is forced to go on an angle toward the bed, this turns the top hip down and then the spine follows and twists, and in some cases the shoulders and neck end up with some strain. If you are a side sleeper, I would suggest to be proactive and to help yourself and get a knee pillow, it would be the best $40 or $50 you spend. The best option is one that attaches to the leg, to stay in place all night.
If you are a side sleeper, a pillow placed between your knees is recommended. When laying on your side, a downward slant naturally occurs from the side of the hip down to the knee. This places stress through your hips, often resulting in pain. Placing a pillow between the knees helps prevent the downward pull on the hip, lining the knee and ankle with the hip.
Positioning the pillow this way is also important after hip or knee surgery The majority of people sleep on their side. It is important that they maintain the correct sleep posture, with their spine in a neutral position to prevent lower back and hip pain. A good knee pillow will accomplish this.
Eileen is the CEO of Pillow Solve Inc. in Montreal, QC. She always knew she had to come up with a solution for her sore knees and painful back. Having always slept on her side, Eileen tried a big pillow between her knees, but it made it hard to turn over at night, often waking her up. She then tried a small pillow but lost it during the night when she moved. Then, Eileen started working on designing a pillow that was comfortable and stayed in place all night long. After 2 years of development, Eileen created Sleepy Kneez®, the knee pillow that is both comfortable and stays firmly between your knees all night. She is passionate about posture, especially posture at night as this can greatly affect how you feel during the day!