The publicly filed floor plans for his crib feature the layout for the most insane master suite we've ever seen. How big? The 941 square feet literally takes up HALF of the second floor of the ginormous crib.

Here's what he's working with: his own stairwell entrance, 2 dressing rooms AND 2 closets (all part of one elaborate wardrobe area), a steam shower and tub with a skylight above, TWO balcony areas with an outdoor hot tub and a kitchenette.

Again, all of that is JUST for his bedroom quarters. Of course, there are 4 impressive guest bedrooms too ... although they don't compare to Drake's.

If the room itself isn't impressive enough, take a gander at the estate in its entirety -- to call it a beaut is a gross understatement.

The mansion is about 35,000 square feet on a 2-acre lot and the toys include ... 2 saunas, a massage room, a 10-car garage, an elevator, a gym, a screening room ... and a full basketball court. There's more, but we're tired.

Drake bought the place for nearly $4 million and had it under construction for a majority of 2017 and about half of 2018. Talk about views!