I visited it too and in the Augio Tour it was said that the bedrooms (don't remember if all) will be used for visiting Heads of State.
Not all indeed as the third floor has the appartments for the visiting Heads of State,13 of them as one was added to the original twelve....
obviously...The second and the 4th floor,mezzanine floors,have the rooms for the staff of both HM as well as the visiting Head of State.
I believe that what at present is still called the "secretary" room,was a bedroom in use by the late Queens Wilhelmina and Juliana,it is now
a bedroom again.
The 2nd and 4th floors indeed look like hotel corridors,but then a 5* + one.The beds there may be modern,but the chairs are part of the largest collection of Empire furniture outside France and still in situ at the orginal place they were made for by order of King Louis Napoléon by,initially,ateliers in Paris,but soon also by a dutch furniture atelier between 1808 and 1810.Beautifull.
Some of the chandeliers once adorned Queen Hortense's boudouir,but the large silver and platinum one,weighing over 700 kilo's and 3 meter high in what was the burgomaster's room initially,was ordered by King Willem III for Het Loo Palace but deemed not functional enough for that Palace.The chandelier was cleaned with chalk as it was in ruins and pieces,and blackened,on the attick,and that was when the platinum and ( goldplated-) silver was discovered,it also has superb quality christal adorning it,and much of it.An immense and immensily beautifull piece.
The two chandeliers in what is generally known as the "Mozesroom" venue of the signing of the Act of Abdication by Queen Juliana,but known also by its original name the Vroedscapskamer,were also ordered by King Willem III to adorn Het Loo Palace,but also quickly found their way to the Royal Palace here.All in all,a glittering,beautifull and warm Palace.I love the carpets,after an original 17th century design.