We have two types of float tanks, two Oasis Float Tanks (Float Rooms #1 & 2) and the Float Cabin (Float Room #3) , Both are very large spaces, providing the best sensory reduction experience, possible.
Its all the same once your get in, you can’t tell if your eyes are open or closed. Whatever you are most comfortable to float in, try both and see what one you are more comfortable in. Its not the float tank, its the floater, and your float is a practice that takes a few times to get it, with consistency to continue progress.