noun
neck pillow
A pillow designed to support the neck, often used during travel. Also referred to as ネックピロー.
See also: ネックピロー
飛行機の中で首枕を使うと、とても楽です。
Using a neck pillow on the plane is very comfortable.
Loanword from English 'neck pillow', commonly used in travel contexts. 首枕 is the native Japanese equivalent.
Compound of 首 (kubi, 'neck') and 枕 (makura, 'pillow').