Is there a word or a different phrase that describes a person as a heavy sleeper or as somebody who struggles to wake up in the morning?
I don't mean a technical phrase for a health condition, just the common "I don't want to get up yet" kind of sleeper.
EDIT: I'm new to this stack exchange so I'm not sure if it's proper to do so, but I want to explain what I intend to use this for. Perhaps it'll help in finding the word/phrase.
I'm looking to name an alarm clock application. The app is geared towards waking up heavy sleepers or people who struggle in the morning. They're not lazy and spending all day in bed. They're wanting to get up (hence why they set the alarm) maybe for work or an appointment but struggle with somnolence (awesome word) in the morning.