There is too much noise. I cannot sleep.
RU-mo-re — three syllables, stress on the first.
Call reception during the night if noise from other guests or outside is preventing you from sleeping.
'C'è troppo rumore' = there is too much noise. 'Non riesco a dormire' = I cannot manage to sleep ('riuscire a' = to manage to/succeed in). This is a common night-time complaint at hotels, especially those in city centres.
I vicini di camera fanno molto rumore.
The neighbouring guests are making a lot of noise.
Specify that the noise is from another room so staff know where to intervene
C'è una festa in corso nell'hotel?
Is there a party happening in the hotel?
Ask this if the noise suggests an event you were not warned about
Il traffico fuori è insopportabile.
The traffic outside is unbearable.
Ask for a room change if street noise is too disruptive
Italian hotel guests rarely complain about noise — it is considered unsporting. But if you genuinely cannot sleep, calling reception is the right thing to do. Hotels take noise complaints seriously, especially after 11pm when 'silenzio notturno' (night silence) is expected.