A spongy bed barrier
In our experience, babysitting can get boring. It is challenging if you are looking after a toddler. Yet, if you’re looking after babies, you probably already realized that they don’t do much. They cry and sleep, and you have to make sure they don’t roll over the bed and fall.
Most people arrange pillows like a fort for the baby not to fall. However, this person made great use of a pool noodle. They stuck it to the mattress to create a simple barrier that is more discrete.