Slumbersac Muslin Sleeping Bag with Feet Approx. 0.5 Tog - Cars- 3-4 years/110cm

We live in south Florida and I believe my 3 yr old son runs warm at night despite our running the a/c at 68 degrees through the night. We use one of these sleep sacs every night with a cotton long sleeve tee underneath and the combo has been just right since he’s been almost 1. He sleeps a solid 10 hours at night and he uses for his daily two hour naps as well.It has washed very well over and over again (and I wash all sleep items on hot) and we never have quality issues with the zipper.I am the biggest fan of these. As reference my son is currently 42 lbs and a few months ago he measured 41.5” tall. This sac still pops over his feet once I pull it down over them at night.