Here are some examples of how to use it in a sentence:
* Просыпаться рано утром: (Prosypaťsya rano utrom) - Wake up early in the morning.
* Я просыпаюсь в 7 утра: (Ya prosypajus' v 7 utra) - I wake up at 7 am.
* Он проснулся от шума: (On prosnulsya ot shuma) - He woke up from the noise.
You can also use the verb "будить" (budit') which means "to wake someone up".
* Пожалуйста, не будите меня: (Pozhaluysta, ne bud'te menya) - Please don't wake me up.
* Мама будит меня в школу: (Mama budit menya v shkolu) - Mom wakes me up for school.
Remember that "prosypaťsya" is usually used for someone waking up on their own, while "budit'" is used when someone else wakes someone up.