As for oatmeal, a small bowl of oatmeal made with water or milk (dairy or plant-based) can give you complex carbs that make serotonin, which helps you rest.
Greek yogurt is low in sugar and high in protein. It can also be a good source of tryptophan, an amino acid that helps you relax.
Because they are high in magnesium and potassium, bananas can help relax muscles. They're also easy to process and have tryptophan in them.
A handful of peanuts can give you energy, good fats, and magnesium. They might help keep blood sugar levels steady all night.
Cherries are a natural source of melatonin, which can help keep your sleep-wake cycle in check. Cherry snacks, whether they are fresh or dried, are great before bed.
The crackers give you complex carbs, and the hummus gives you protein. They make a healthy snack that won't make your blood sugar go up or down.
Because cottage cheese is high in casein protein, it can slowly release amino acids throughout the night, which can help muscles heal and relax.