It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that there was a striped sheet on Hamzah; when his head was covered with it his feet were exposed, and when his feet were covered his head was exposed. So the Prophet (peace and blessings be upon him) ordered that his head be covered and that grass and stones be placed over his feet.
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 2929