Seroquel - I have a small, round, white pill with a number 5 on one side and the letters "ZPL" on?

Is the imprint ZLP and 5? If it is then please see the link below. It must be a zolpidem 5mg tablet.

https://www.drugs.com/imprints/zlp-5-11313.html

Zolpidem is a sedative, also called a hypnotic. It affects chemicals in your brain that may become unbalanced and cause sleep problems (insomnia).

Zolpidem is used to treat insomnia. The immediate-release forms of zolpidem are Ambien, Edluar, and Zolpimist, which are used to help you fall asleep. The extended-release form of zolpidem is Ambien CR, which has a first layer that dissolves quickly to help you fall asleep, and a second layer that dissolves slowly to help you stay asleep.

https://www.drugs.com/zolpidem.html

The link below has information about known side effects of zolpidem.

https://www.drugs.com/sfx/zolpidem-side-effects.html