The essentials are two or three sets of Ihram — white plain cloth, 100% cotton or light terry-cloth, cool to wear and absorbent. Take light, airy clothes for street wear: enough to be comfortable, but do not burden yourself, as professional laundry is available in Saudi Arabia. For Hajj in the winter months, take some woollen clothing, as the early mornings are cool. Also take three or four pairs of rubber slippers for use during Ihram, a couple of pairs of comfortable shoes or sandals for walking, two large and two small towels, and — if you wish — a sleeping bag, an inflatable pillow and thick sheets.