1.[Upgraded Cervical Neck Pillow] Compared with most cervical pillows on the market, our cervical neck pillows added a built-in & removable small pillow, which is very friendly to people with cervical spine problems. Only need to lie on the small pillow for 10 minutes a day to relax your neck, after 10 minutes, please switch to the other side of the pillow and use it as a regular pillow all the night. NOTE: ① ONLY 10 Minutes per time on the side of small pillow and ② No more than 30 minutes a day. 2.[Improve Sleep Quality and Mood]Are you waking up with neck pain, back pain, headache or feel tired? ergonomic design memory foam pillows provide excellent support for your neck and spine, achieve to naturally aligns with your curved spine and keeps your head in a much more ergonomic position. Outstanding balance of support and comfort not only help you fall asleep easily, but also allow you to get a good night's sleep and wake up feeling more refreshed and rejuvenated. 3.[Slow Rebound Memory Foam Pillow]Our neck pillow designed with a unique natural molded foam which is made of premium resilient memory foam, when you lie on the pillow, the memory foam will slowly rebound a part, making you feel as comfortable as lying on a cloud. The right amount of firmness and support is molded excellently to the shape of your neck and head, ensuring a restful night's sleep. 4.[Cooling Breathable & Removable Pillowcase]This side sleeper pillow with cooling ice silk pillowcase, and there are lots of ventilation air holes at the neck and head position, which help dissipate heat and keep you cool all night. The pillowcase has a zipper on the side, you can remove it for cleaning at any time, and it's machine washable. You will not regret to purchase this super comfortable sleep pillow. 5.[Idea Present and Game Changer]Innovative butterfly bed pillows provide a variety of options for different sleeping positions (Side Sleeping, Back Sleeping and Stomach Sleeping), the fantastic balance of support and comfort will be a game-changer for your sleep quality, also help to fall asleep on. Soft, supportive and nice quality contour pillow is a good present for family member, friend or colleague etc. 6.[Tips for Built-in Pillow]When using the side of built-in small neck support pillow, please pay attention to these tips: 10 Minutes per time and No more than 30 minutes a day Can't be used as an ordinary pillow all night long Start with just 1-2 minutes per day to assess your tolerance and then increase the use time At first, you may feel slight discomfort as your muscles and joints adjust to their positions. Normally you will need 3-7 days to adapt it Not to be used for treatment.