I'm a big fan of fluffy pillows, but cannot stand when they flatten. The Flow pillows are the perfect solution. Soft and fluffy (not to mention cool!), but still supportive through the night. I tend to fall asleep on my side and then eventually wake up on my back and these pillows feel great in both positions. I'm petite so I went with the 1.0 which fits in my neck nook just right. If you're looking for a really soft and fluffy pillow that's still super supportive, look no further! I paired mine with an S3 mattress and now have the ultimate sleeping retreat.