Sonu Sleep System is an innovative, luxurious 14-inch mattress designed specifically for side sleepers. Its unique Comfort Channel design allows side sleepers to fully immerse their arms and shoulders into the mattress. The mattress comes in two different firmness options to suit all sleepers, from lightweight to heavy. It has a final Sleepiverse Rating of 4.8 out of 5. The mattress is a good choice for side sleeping, couples, pain relief, plus-sized sleepers, and those looking for a luxurious 7-star hotel feel at home. However, some users on Reddit have reported issues with customer service and return policies, particularly regarding the non-returnable sheets and mattress protectors. Others have praised the mattress, especially side sleepers, who find the design beneficial for reducing pressure and improving circulation. Therefore, it's recommended to do thorough research and consider personal sleep preferences before purchasing.