Well it depends on where you want them to sleep. They can sleep downstairs or upstairs. They love dog beds. I do not have one but I have a book all about dogs and they pretty much sleep wherever.
Because they have very prominent bones with little padding, they need to sleep on a very soft, padded surface. They love large sofas and king size beds.
Sleep!
On the floor in an extra-large dog bed.
you don't
the dog itself is a Great Dane. Plural (more than one) it is Great Danes.
Yes they can be. Great danes are very lazy dogs due to their big size, and will not need very much exercise. A 20min walk a day on different routes will do them, and then they will sleep or 'lounge' for the next few hours, which is why they are known as apartment dogs because they will lie down and sleep for hours on end without running around or going crazy in a small house. However, they can survive long walks or hikes if you want, but then they will sleep it off for the next year (slight exaggeration there, maybe more like 5-6hrs). Great Danes do need quite a bit of motivation in training and exercising, but it is compulsory they get it, especially because of their size!!
no because, the great danes are much bigger than the poodles
Great Danes are not natuarlly viscous dogs. They can be trained for many jobs, including guarding.
Yes, both my male and female great danes catch and fetch frisbees.
The Danes wanted to be prepared for Grendel's attack. They would not have time to put on armour while the beast was attacking.
Great Danes are believed to be originated in Germany by the Alans from Mastiff's and probably wolf hounds.
Great danes like all dogs do have backbones.
No, they do not.