My dusky conure wont sleep without his hut

[snowflake311]

The only bad thing I have heard about them is the slow and gradual buildup of snuggly material in their GI tract

Unfortunately there are much faster deaths involved where parrots get caught in a loose string, panic and die very quickly.
It's happened to members of this forum before.

It's also worth remembering that many parrots have lived long happy lives sleeping in happy huts.
As mentioned earlier, some common sense has to be used when evaluating the risks.

Tottaly off topic but I love your Signature photo Mudkips