This memory foam pillow by #JIAAO is extremely comfortable. I'm a side sleeper and the amount of memory foam is perfect for me. I like that t HF eyve included additional memory foam in case you need it a bit firmer. I did take the pillow out of its wrapping and popped it into my dryer on delicate low heat as instructed for ten minutes. The pillow did expand fully and I'm extremely pleased with this purchase.