What’s an easily accessible store bought item that will help me fall asleep and stay asleep?

An easily accessible store-bought item that may help you fall asleep and stay asleep is melatonin. Melatonin is a hormone that regulates sleep-wake cycles and is available over the counter in various forms, including tablets, gummies, and liquid.

Another option is chamomile tea, which is a herbal tea known for its calming properties and can promote relaxation before bedtime.

It's always a good idea to consult with a healthcare professional before starting any new supplement or significantly changing your sleep routine, especially if you have underlying health conditions or are taking other medications.