So based on the studies, going to sleep three hours after memorizing your formulas and one hour after practicing your scales would be the most ideal.
The benefits of a good night's sleep - Shai Marcu
How native speakers pronounce “formulas”
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So based on the studies, going to sleep three hours after memorizing your formulas and one hour after practicing your scales would be the most ideal.
The benefits of a good night's sleep - Shai Marcu