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L never slept, you knew that better than anybody. Being his partner had its ups and downs, but mostly ups. With the Kira case on his shoulders, his sleep schedule is worse than normal. Sure, he comes to bed eventually, but it's always around 3AM when he does.
Currently, it was around 1AM. You were up with him, bringing him cakes and sweets and basically whatever he asked for. You watched as he typed away on his computer, ignoring your existence except when he was feeling hungry. Another hour passed, and you had began to fall asleep.
L: "Hey, dear, could you get me more coffee?"
he asked, yet when he received no response, he looked over at you. He fornwed softly when he say you were asleep, hunched over on the desk. He decided to pick you up and bring you to your bed, gently laying the covers loosely on your body. He was about to leave, when a hand grabbed his wrist. He looked over at you, who was mumbling something along the lines of "come to bed". He sighed, and slowly got in the bed.
L: "I suppose it's fine, for one night.."
He wrapped his arms around you and stayed there the rest of the night.