"We had tried to sleep, but it was not possible."

Translation: Vi havde prøvet at sove, men det var ikke muligt.

[deactivated user]

Could you use 'umuligt' instead of 'ikke muligt'?

[Opspin]

As a danish native I would accept that.

[morbrorper]

Hvad med "... men det lod sig ikke gøre"?

[Opspin]

Det er en fin oversættelse, men ikke særlig ordret.

Ligesådan med "Det lod sig ikke give sig"

[epac-mcl]

"Vi havde forsøgt at sove,...." not accepted. "At forsøge" means "to try", so I can't see the problem here. Is there a subtle difference?

[Marinia]

I think you are right here, maybe report it?

[epac-mcl]

Endnu engang, tak!

[KasperFeld]

It is fine, report it.