My 1 month old son loves timmy time. He's gassy and bloated almost all the time and tummy time really helps him pass gas. He is going through the phase where he grunts and pressurizes his abdomen muscles 24x7 as if to pass gas and doesn't get much sleep. But he enjoys amd sleeps peacefully during tummy time. My question is: How long can i give him tummy time under supervision? Is it okay for him to be like that for hours as long as he's under supervision?