- Giraffes sleep for only about 30 minutes at a time. They cannot completely relax due to predators. - They sleep standing up with their legs locked at the knees so they can wake up quickly if needed. - Their long neck droops down while sleeping, but still remains upright so they can breathe. - They typically sleep fewer than 6 hours per day total, napping frequently for short periods. - Males and females will sleep separately, either alone or in small single-sex groups. - Giraffes will rotate s