The second image
displayed by a commenter is not safe for nap and is to be used for play, entertainment, soothing and neck strength exercise for as long as you might do tummy time or until the baby falls asleep at which point you would move them as soon as possible (once definitely asleep) to a sleep certified crib.
I would describe myself as left wing.I also discovered Real Climate when I first started taking an interest in these matters and was rapidly put off
by the arrogance, the bullying and the sneering
displayed by those who run it and
by some of the regular
commenters.